Gas-valve.



PATENTED JAN. 23, 1906.

J. SWE'ENBY.

GAS VALVE.

APPLIOATION FILED JUNE 30.1905.

Witnesses JOHN SVVEENEY, OF JOHNSTOWN, PENNSYLVANIA.

GAS-VALVE.

I No. 810,443.

Specification of Letters Patent.

Patented J an. 23, 1906.

Application filed June 30, 1905. Serial No. 267,772.

T0 a/ZZ whom, t may concern:

Be it known that I, JOHN SWEENEY, a citi- Zen of the United States,residing at Johnstown, in the county of Cambria and State ofPennsylvania, have invented a new and useful Gas-Valve, of which thefollowing is a specification.

This invention relates to reversing-valves of that class employed forcontrolling the flow of currents of air or gas to and from heating andmelting furnaces, and has for its principal object to provide a valvethat may be quickly moved from one position to the other with minimumexertion and which will be automatically sealed in water at eachadjustment.

A further object of the invention is to provide a novel means forcooling the valve and for supplying fresh water to the sealing tank orchamber to replace the water evaporated and to keep the parts cool.

A still further object of the invention is to provide a valve that isreadily accessible for purposes of renewal, repairs, or cleaning.

With these and other objects in view, as will more fully hereinafterappear, the invention consists in certain novel features of constructionand arrangement of parts hereinafter fully described, illustrated in theaccompanying drawings, and particularly pointed out in the appendedclaims, it being understood that various changes in the form,proportions, size, and minor detailsv of the structure may be madewithout departing from the spirit or sacrificing any of the advantagesof the invention.

In the accompanying drawings, Figure 1 is a sectional elevation of areversing-valve constructed in accordance with the invention. Fig. 2 isa sectional plan view of the same.

Similar characters of reference are employed to indicate correspondingparts throughout the several figures of the drawings.

At the top ofthe furnace A, which is provided with the usual passages B,C, and D, leading to the furnace and stack, is secured a casting 10,that is provided witha continuous marginal flange or rim 11, forming awater vessel in which the valve is sealed, as hereinafter described, andaround each of the openings B, C, and D the casting is also providedwith an annular flange 13 of the same height as the outer flange 11. Atone side of the flange 11 is arranged a small overflow-compartment 14,into which the excess water flows through a notch or recess 15, formedin the flange 11, the water flowing off through a suitable waste-pipe17, and if water is continuously supplied to the casting there will be acontinuous outflow and the parts may be kept in a comparatively coolcondition.

Secured within the flange 11 is a casing 17, which in the presentinstance is shown as formed of structural -iron and sheet-iron plates,and this in some cases may be lined with fire-brick or other` refractorymaterial. To the upper portion of the casing leads a pipe 18 from -thegas-producer, air-compressor, or other source of supply.

The upper portion of the casing is provided with a bearing 20, thevertical axis of which is coincident with the vertical axis of thepassage B, and in said bearing is arranged a vertical spindle 21, to thelower end of which is rigidly secured a valve 22 in the form of aninverted pan, one end of the valve being always in communication withthe passage B, while the opposite end thereof may be adjusted tocommunicate with either the passage C or the passage D, as required. Thelower edge of this valve is sealed in the water except during the timerequired for adjustment from one position to the other.

Fitting around the bearing 20 is a sleeve 23, that is supported on anannular series of bearing-balls 24, and projecting from one side of thesleeve is an arm 25, to which is pivoted an operating-lever 26. One endof the lever is pivoted to the upper end of the spindle 21, and theopposite handled end of said lever is provided with an adjustably-mounted weight 27, which partly counterbalances the weight ofthe valve, so that when the handle is pressed down by hand the valve maybe readily raised until its lower edge is above the flanges 13, andafter this the handle may be moved in either direction in a horizontalplane for the purpose of shifting the valve to permit communication witheither the passage O or the passage D. This valve may also be lined withfire-brick or refractory material, if necessary.

The spindle 21 is hollow, and from its upper end projects a small pipeor nipple 28, to

which may be connected a water-hose or swing-joint pipe, and at thelower end of the spindle are arranged a number of radial openings 29,through which the .water passing downward through the spindle may dis-IOO IIO

charge over the top of the valve, the water tending to keep the valve ata comparatively low temperature and flowing over its top and sides, tobe received in the sealing vessel formed by the casting l() and itsflanges.

At one end of the casing 17 is a door 30, which may be opened to permitaccess to the interior of the casing should it be necessary to clean,examine, or repair the valve.

A valve constructed in accordance with this invention will require butlittle exertion to raise the valve until its lower edge is above theflanges 13 and then to turn the valve in order to establishcommunication with either of the passages C or D.' The valve, moreover,is kept comparatively cool by the running water, and the water of thesealing vessel is constantly replenished.

Having thus described the invention, what is claimed isl. Thecombination with a fixed watersealed casing, of a plurality of passageshaving verticallyextended walls terminating above the lower portion ofthe casing, a water-sealed valve arranged within the casing and movableindependently thereof", and a vertically-movable and revolublecarryingspindle for said valve. l

2. In a device of the class specied, a plate provided with a marginalflange, and a plurality of annular flanges within the marginal flange toform a water-containing vessel, a vertically-movable andrevolubly-adjustable valve arranged above the plate, and having itslower edge sealed in the water, and a stationary water-sealed casingcovering said valve.

3. In a device of the class specified, a plate having a marginal flangeand provided with a plurality of flanges within the marginal flange toform a water-containing vessel, a valve, the lower edge ol" which issealed in the water, a vertically-movable and revoluble spindlesupporting the valve, an operating member connected to said spindle, anda stationary water-sealed casing surrounding said valve.

4. In a device of the class specified, a stationary water-sealed casinginclosing a plurality of ports or passages, an open-bottom valvearranged within said casing and movable independently thereof forcontrolling communication between the passages, a spindle connected tosaid valve, a lever connected to the spindle, and a revoluble support onwhich said lever is mounted to permit turning of the valve.

5. In a device of the class described, a flanged base arranged to form awater seal and provided with a plurality of annular flanges forming theterminals of air or gas passages, a casing extending over all of suchpassages and provided with a bearing, a longitudinally-movable andrevoluble spindle mounted in said bearing, a valve carried by thespindle and controlling communication between the passages, a collarsurrounding the bearing, bearing-balls between the collar and bearing, abracket projecting from the collar, a weighted operating-lever mountedon the bracket, and means for connecting the lever to the spindle.

6. In a device of the class described, the combination with a base-platehaving a marginal flange to form a water-containing vessel and providedat one side with an overflowcompartment from which waste water isdischarged, said plate being further provided with a plurality ofannular flanges arranged at the terminals of gas or air passages, acasing inclosing all of said passages, a bearing in said casing, saidbearing being in vertical alinement with one of the passages, alongitudinally movable and revoluble spindle mounted in said bearing, avalve carried by the spindle and controlling communication between thepassages, said spindle being hollow and provided at the top with awatersupply connection, and at the bottom with ports for the dischargeof the water, a collar surrounding the bearing, and supported bybearing-balls, a bracket projecting from the collar, and apivotally-mounted weighted lever fulcrumed to the bracket and connectedto the upper portion of the spindle.

In testimony that I claim the foregoing as my own I have hereto affixedmy signature in the presence of two witnesses.

JNO. SVVEENEY.

Witnesses:

CHARLES L. RAY, W. O. IIENOHBERG.

